-
identified under magnification (600×) by
their characteristic granular exines bearing three con****uous pores.
Corylus has
around 14–18 species. The cir****scription...
-
shape and form a
resistant outer wall
called the
exine and an
inner wall
called the intine. The
exine is what is
preserved in the
fossil record. Two basic...
- in
volatiles and
relatively rich in hydrogen, that is
represented by the
exines of spores. C.A.
Seyler in 1932, however, used the term with its present...
- One
characteristic which most
species in this
group share is a lack of an
exine, or
protective layer,
around the
pollen grain. Paul
Knuth identified two...
-
binucleate pollen,
which has a
thicker exine and the
second is
trinucleate pollen,
which has a
thinner exine.
Binucleate pollen has a
higher lifespan...
- is a
biological polymer found as a
major component of the
tough outer (
exine)
walls of
plant spores and
pollen grains. It is
chemically very
stable (one...
- of
Fatty Acids and is
Required for
Anther Cutin Biosynthesis and
Pollen Exine Formation in Rice". The
Plant Cell. 22 (1): 173–190. doi:10.1105/tpc.109...
-
annulus or disk at the top of the
achene beak. In some
pollen grains, the
exine around the
apertures is
either thicker or thinner. In pores, this border...
-
relatively uniform. The
pollen patterns are
tricolpate with
reticulate exines. The
petals of the
Hamamelidaceae are
generally narrow and ribbon-like....
-
their pollen. In some
species of monocotyledon, the
operculum is an area of
exine covering the
pollen aperture. In Plantago, the
capsule has an
opening covered...
